Means fob supporting a sep abating hoppeb as



Nimh 7, 1933. E L MARTlN 1,900,354

MEANS FOR SUPPORTING A SEPARATING HOPPER AS APPLIED T0 PORTABLE MILLSFiled Jan. 26, 1931 '10 ered position.

Patented Mar. 7, 1933 'rf-UNITED. 'STA-Tiasl PATENT OFFICE i EARL L.MARTIN, DES MOINES, IOWA v MEANS :Pony SUPPORTING A sEPAnA'rING HOPPERAs APPLIED To PonTABLE MILLS Application 1edJanuary'26, 1931.` Seriall1\To..5ll,241.

` l *This invention relates to improvementsA "n j I 5 for adjustablymounting the hopper, whereby the hopper may be easily and quicklyelevated and lowered, and at the same time provi-des means whereby thehopper is firmly supported in either an elevated `or low- -Morespecifically it is the object of my invention to provide an improvedsupport or stand for carrying a separating hopper which is of simpleconstruction and formedv principally of structural steel, and in'such amanner thatthe parts are firmly secured k.together against working looseas the mill is moved fromone position to another.l l

, A further object is to provide improved means for securing the hopperto the movable member of the adjustable support.

A further object is to provide improved means for bracing the hopperafter it has been moved to either of its adjusted positions. y Y Y Afurther object is to provide a simple and strong adjustable stand formedof structural langle iron having a stationary member and a movable'member Vwith simple and effective means for*l elevating and loweringthe movable member.

My invention consists in the construction, arrangement and combinationrof the various parts of the device, whereby the objects contemplated areattained, as hereinafter more fully set forth, pointed out in my claims,andv illustrated in the accompanying drawing, in which:

Figure 1 1 ure 1;

llustrates a'portion of one endv 40of a mill supporting frame vshowingthe .Referring to the. accompanying drawing, I have used the referencenumeral 10 Vto indicate a supporting frame on which a mill 11 ofordinary construction is mounted. An

enginel 12 is also vmounted on the rframe for supplying powerto themill. i

Adjacent to oneside of the mill 11 is a blower 13,also'driven from theengine 12,

and designed toV receive material from the.

mill asit lis ground. Said material is delivered to a hopper 14`ofordinarylconstruction. The lower end ofthe hopper is substantiallyfunnelyshaped, while the upper portion .15 of the hopperv'is ofcylindical vformation. .A pipe y16 connects the blower 18 with theVmember 15, in the usual manner, sothat material delivered to' theblower A18 will in turn' be delivered to the hopper 14.

For supporting the hopper 141 have provided an adjustable standcomprising'an upright angle iron 17 having vits lower end welded in oneof the corners of the frame 10. One of the flanges 18 of the angle 17lies adjacent to the inner surface of the side member of the frame, andthe otherzflange 19 adjacent to the back member20 of the frame.

` Supported adjacent to the outer surfaces ofthe flanges 18 and 1 9v andnear theirv lower ends, and immediately `vabove the frame.

member 10, is a'bar 21, secured in position by welding andV has, its'yends projecting inwardly, as clearly illustrated in Figure 5.

' The inwardly projecting ends are indicated Vby thenumeral 22.'

Supported near the upper end of the angle 17 is a bar 28 similar to thebar 21, having forwardlyextending portions 24. A crank shaft 25 isrotatively mounted in the members 24, said shaft carrying a sprocket26.. The forwardly extending'portions 22 have `a shaft`27 designed tosupport a sprocket wheel 28. Mounted on the sprockets 26 and 28 is achain 29, the purposer of which will hereinafterbey made clear.

`The free edges of thefianges 18and19 are provided with strap.l irons 30welded in position andbent inwardly to form Ahook portions 31. Similarstraps. 32 are provided intermediate the upper rand lower endsl of thefree "edgesiof said channels,

similar to the members 30. Said hook portions 31 provide guides for amovable angle iron 33 mounted inside of the angle 17 in the mannerclearly illustrated in Figure 3. The outer surfaces of the flanges 34 ofthe angles 33 are provided withl blocks 35, to serve as spacers topermit the outer lcorners of theiangle 33 from engaging the liilet ofthe angle 17.

By this arrangement it will be seen that the angle 33 is free to slideupwardly 'and downwardly in the angle 17. The angle 33 -isconnectedtothe inner run of the chain 29 by means of a block 3d in sucha manner that as the chain 29 is rotated, the angle 33 will be movedupwardly and downwardly. -The outer run of thechain 29 is provided witha stop memberl 37 designed toeiigage the sprocketl 28v when the angle 33has reached itsupper limit of movement. The angle'33 is locked againstdownward movement by means Aof suitable set screws 33 mounted in theflanges 18 and 19. The crank shaft 25 is provided with a crank 39 foroperating the chain 29.

lA brace bar 40 is welded to one side of the flange 19 near its upperend, and has its lower end connected. to one of the frame members 10. Asimilar brace bar-l 41 is secured to the outer surface of the angle 13land to the frame member 20. Said brace 'bars `support the angle 17 inan upright position, and also the flanges A13 and 19 against 'torsionalmovement about the longitudinal' axis of the angle.

Secured to the upperend of the flange 33 is abracket plate 42 havingrearwardly and outwardly lextending `portions 43. Bands 44l arepro-vided for the upperand lower ends of the member A15, the ends ofsaid bands being secured together by means of a bolt v45 projectingthrough suitable lugs 46.

Mounted between the inner vedges of the bands 44V Lis a plate 47 weldedor otherwise rigidly supported between the inner 'edges of said bands.rllhe plate 47 and the bands 44vare secured to the members 43 bywelding, :so that the bracket 42 the plate 47, and the bands 44 form aunit-ary frame member for clamping the upper end of the hopper 14, andprovidemeans whereby the hopper may be easily and quicklyl removed if sodesired for repairs or the like, lby simply loosening the bolts 45,permitting` the 'ends of the bands 44 to be separated sufiiciently toallow Ithe hopper tov be removed.

`The bands 44, the plate 47 and the bracket '42 provide means forrigidly supporting the hopper to the upper end of the .movablesupporting member 33. Y

To assist in supporting the weight of the hopper and to assist inpreventing swinging of the hopper about the longitudinal axis of themember 33, l have provided a telescoping brace member48, one end ofwhich is pivotally connected to one of the frame members 10, and theopposite end pivotally connected to the lower band 44. A. pin 49 isprovided for locking the movable members of the brace in its variousextended positions. Suitable openings 5() are provided in the bracemembers for the pin 49.

By this arrangement it will be seen that I have provided a support forseparating hoppers, especially designed to be used in connectionwith'portable mills, and formed principally of structural steel havingall of its fixed membersrigidly supported together by welding, toprevent loosening of the connections between the members due toexcessive vibiations as the machine is moved from one positionto-another over rough ground.

Furthermore, l have Vprovided means whereby the hopper may be easily andquickly adjusted toV 'various' elevations vas desired in the operationof the machine, and

`provided with an adjustable brace for rigidly supporting the hopper insaid adjusted positions.

.I claim as my invention:

1. The combination of an upright support, a second upright supportslidably mounted longitudinally of the first support, a supportingf'ramecomprising a pair of parallel annular lframe members, and aplateadjoinling a portion of the inner edges of said frame, and meansfor locking the movablerv members of said brace to each other and in oneof a number of adjusted positions.

3. The combination of, a rectangular frame, an angle iron supportedvertically from one corner of said frame, a brace. mei'nber connected tothe outer lsurface of each flange of said angle near its upper end, oneof said braces being connectedto one of the side members of said frameand the other to one ofthe end members of said frame, a second angleslidablymounted longitudinally of the first angle, guides carried by thefirst -iio angle for slidably supporting the second angle, a laterally.projecting supporting to the corresponding side member of said isupporting bracket to prevent swinging movement of saidvsupporting frameabout the longitudinal axis of said supports.

Ll. In a device of the class described, the combination of an uprightsupport, a second upright support mounted to slide longitudinally of thefirst support, an annular supporting bracket permanently fixed to theupper end of the last said support, means for elevating and loweringsaid secondupright, a telescopic brace having one end pivoted to saidbracket and its opposite end pivoted to said frame, and means for fixingone member of said brace to the other member at various adjustedpositions.

5. In a device of the class described, the combination of an uprightsupport, a second upright support mounted to slide longiv tudinally ofthe firstsupport, a supporting bracket fixed to tlie upper end of saidsecond support, means for elevating and lowering said second support,means for, locking tlie last said means at various elevated positions, atelescopic brace having one end pivotall'y connected to said bracket andits opposite end pivotally connected to said v frame, and means forfixing said brace members relative to each other at various adgustedpositions. Y

6. The combination of an upright support,

a second upright support slidably mounted longitudinally of the firstsupport, a supporting frame comprising a pair of parallel annular framemembers, a plate adjoining a portion of the inner edges of said framemembers, and means for fixing said plate to the upper end of said secondsupport.

EARL L. MARTIN.

